[Calchet]

At the moment, the blunderbusses are short-range projectiles with pretty good damage and a secondary physical 'shrapnel' random area-of-effect attack - they are frighteningly effective against unarmoured troops, but do little against heavy armour. (That's what the Earthshaker cannons and Death Rockets are for.)

Also, that's pretty much how it went down - they no longer keep Black Orcs among their regular slaves, but rather hunt some down and outfit them when they need them as soldiers. In-game, black orcs will basically be stronger, tougher and more skilled but more expensive in both gold and resources as compared to regular orcs. Orc and Goblin bosses with the exception of Hobgoblins will also likely have a leadership of 0 - they're not trusted to lead armies. (They'll get a standard ability instead, letting them keep the low-morale troops in line... more or less.)